Contrasting effects of microbial fertiliser and organic fertiliser on soil bacterial community in coal mine dump of Inner Mongolia

2021 ◽  
pp. 1-15
Author(s):  
Xiao Yan ◽  
Jianlei Wang ◽  
Xuewu Hu ◽  
Bingbing Yu ◽  
Bowen Gao ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Coal Mine ◽  
Inner Mongolia ◽  
Soil Bacterial Community ◽  
Organic Fertiliser ◽  
Soil Bacterial ◽  
Mine Dump

Soil bacterial community shifts driven by restoration time and steppe types in the degraded steppe of Inner Mongolia

CATENA ◽  
2018 ◽  
Vol 165 ◽  
pp. 228-236 ◽  
Author(s):  
Minjie Yao ◽  
Junpeng Rui ◽  
Jiabao Li ◽  
Junming Wang ◽  
Weidong Cao ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Inner Mongolia ◽  
Soil Bacterial Community ◽  
Restoration Time ◽  
Community Shifts ◽  
Soil Bacterial

scholarly journals Soil bacterial community and functions directly respond to grazing exclusion in a Leymus chinensis steppe of Inner Mongolia, China

2020 ◽  
Author(s):  
Han-Wen Deng ◽  
Xin-Fu Bai ◽  
Ping Zhu ◽  
Yu-Meng Lu ◽  
Lei Ji ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Inner Mongolia ◽  
Soil Bacterial Community ◽  
Leymus Chinensis ◽  
Absolute Abundance ◽  
Ecological Functions ◽  
Grazing Exclusion ◽  
The Absolute ◽  
Soil Bacterial

Abstract Background Grazing exclusion is a common grassland management strategy for restoring degraded grasslands. Its effectiveness on optimizing plant species community, increasing vegetation diversity and biomass, improving soil fertility, has been widely documented in literatures. However, little is known on the responses of the absolute abundance and the ecological functions of soil bacterial community to long-term grazing exclusion. Result In this study, the absolute abundance, diversity, and ecological functions of soil bacterial community were determined by the high-throughput absolute quantitative sequencing technology on a long-term grazing exclusion (40 years, GE) area and three free grazing areas (FGs) within a Leymus chinensis steppe of Inner Mongolia, China, and analyzed the driving forces leading to the variations in soil bacterial community and functions. Our results showed that there was significantly higher soil bacterial abundance in the GE than the FGs along with corresponding variations in vegetation and soil properties. With the decrease of vegetation aboveground biomass, the absolute abundance of soil bacterial community also decreased. Among the phyla of the soil bacterial communities, the relative abundances of Chloroflexi and Firmicutes phyla were especially lower, and that of Verrucomicrobia phylum was higher in the GE than the FGs; the absolute abundances of Euryarchaeota and Microgenomates phyla were especially higher in the GE than the FGs. Conclusions This study suggested that long-term grazing exclusion significantly increased the absolute abundance, changed soil bacterial composition, and especially enhanced bacterial motility and chemotaxis. In particular, soil organic matter was the important agent to influence and connect vegetation and soil. This work will enrich our understanding of the responses of absolute abundance, diversity, and function of the soil bacterial community to long-term grazing exclusion, and help the evaluation of grassland degradation degree and restoration strategy effectiveness.

scholarly journals Effects of novel bioorganic fertilizer application on soil enzymes and bacterial community in multi-site rice paddies in China

AMB Express ◽  
2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Zuren Li ◽  
Jincai Han ◽  
Haodong Bai ◽  
Di Peng ◽  
Lifeng Wang ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Field Experiments ◽  
Chemical Properties ◽  
Soil Bacterial Community ◽  
General Function ◽  
Rice Paddies ◽  
Phylogenetic Groups ◽  
Total N ◽  
Bioorganic Fertilizer ◽  
Soil Bacterial

AbstractApplication of a novel bioorganic fertilizer (BIO) has been effectively used to inhibit weeds in rice paddies. To identify changes in soil bacterial community and enzymes in response to BIO treatments, field experiments were carried out in five major rice-growing areas in China. The dominant phylogenetic groups recorded included Proteobacteria, Actinobacteria, Bacteroidetes, Firmicutes and Acidobacteria. Anaeromyxobacter, Bacteroides, Bifidobacterium, Escherichia- Shigella, Geobacter and Haliangium were significantly different between BIO-treatment and untreated control and aided in general function (R), amino acid transport, metabolism (E) and transcription (K) clusters. The soil chemical properties and enzyme activities were less affected by BIO at these study sites. RDA analysis showed that soil bacterial community had a significant positive correlations among northern latitude, eastern longitude, exchangeable K, total K, total P, soil pH, and total N, except for organic matter, hydrolytic N and extractable P. Overall, our work showed that application of BIO does not alter the main community structure and functional diversity of soil bacteria in rice paddies and should be encouraged for use as a sustainable weed management strategy.

scholarly journals Soil bacterial community in potato tuberosphere following repeated applications of a common scab suppressive antagonist

2021 ◽  
Vol 167 ◽  
pp. 104096
Author(s):  
Lea H. Hiltunen ◽  
Oili Tarvainen ◽  
Jani Kelloniemi ◽  
Jaakko Tanskanen ◽  
Jouni Karhu ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Common Scab ◽  
Soil Bacterial Community ◽  
Repeated Applications ◽  
Soil Bacterial

scholarly journals Effects of Simulated Nitrogen Deposition on the Bacterial Community of Urban Green Spaces

2021 ◽  
Vol 11 (3) ◽  
pp. 918
Author(s):  
Lingzi Mo ◽  
Augusto Zanella ◽  
Xiaohua Chen ◽  
Bin Peng ◽  
Jiahui Lin ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Bacterial Diversity ◽  
Negative Impact ◽  
Bacterial Community Composition ◽  
N Deposition ◽  
Soil Bacterial Community ◽  
Rrna Gene ◽  
Soil Dna ◽  
Urban Green ◽  
Soil Bacterial

Continuing nitrogen (N) deposition has a wide-ranging impact on terrestrial ecosystems. To test the hypothesis that, under N deposition, bacterial communities could suffer a negative impact, and in a relatively short timeframe, an experiment was carried out for a year in an urban area featuring a cover of Bermuda grass (Cynodon dactylon) and simulating environmental N deposition. NH4NO3 was added as external N source, with four dosages (N0 = 0 kg N ha−2 y−1, N1 = 50 kg N ha−2 y−1, N2 = 100 kg N ha−2 y−1, N3 = 150 kg N ha−2 y−1). We analyzed the bacterial community composition after soil DNA extraction through the pyrosequencing of the 16S rRNA gene amplicons. N deposition resulted in soil bacterial community changes at a clear dosage-dependent rate. Soil bacterial diversity and evenness showed a clear trend of time-dependent decline under repeated N application. Ammonium nitrogen enrichment, either directly or in relation to pH decrease, resulted in the main environmental factor related to the shift of taxa proportions within the urban green space soil bacterial community and qualified as a putative important driver of bacterial diversity abatement. Such an impact on soil life induced by N deposition may pose a serious threat to urban soil ecosystem stability and surrounding areas.

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